20951528

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 25618072

約数列:

[1, 2, 4, 8, 13, 19, 23, 26, 38, 46, 52, 76, 92, 104, 152, 184, 247, 299, 437, 461, 494, 598, 874, 922, 988, 1196, 1748, 1844, 1976, 2392, 3496, 3688, 5681, 5993, 8759, 10603, 11362, 11986, 17518, 21206, 22724, 23972, 35036, 42412, 45448, 47944, 70072, 84824, 113867, 137839, 201457, 227734, 275678, 402914, 455468, 551356, 805828, 910936, 1102712, 1611656, 2618941, 5237882, 10475764, 20951528]

約数ペア:

[(1, 20951528), (2, 10475764), (4, 5237882), (8, 2618941), (13, 1611656), (19, 1102712), (23, 910936), (26, 805828), (38, 551356), (46, 455468), (52, 402914), (76, 275678), (92, 227734), (104, 201457), (152, 137839), (184, 113867), (247, 84824), (299, 70072), (437, 47944), (461, 45448), (494, 42412), (598, 35036), (874, 23972), (922, 22724), (988, 21206), (1196, 17518), (1748, 11986), (1844, 11362), (1976, 10603), (2392, 8759), (3496, 5993), (3688, 5681)]